Production apparatus and production method of sucrose-6-ester

A production apparatus of sucrose-6-ester, comprising:

• a tank,
• a rotary distillation device, and
• a condensation device,
• wherein the tank comprises a separation chamber and a reaction chamber that are arranged one above another and communicated with each other;
• the condensation device is sheathed inside the rotary distillation device, and the rotary distillation device is slidably connected in the separation chamber;
• a discharge port is formed at a lower end of the reaction chamber;
• the rotary distillation device comprises a drum and a turntable, the turntable is fixed on a top surface of the drum through a plurality of connecting plates, and a first heating device is provided on an outer wall of the turntable;
• the condensation device comprises a condenser pipe, a water receiving plate, and a condensate water box that are connected sequentially from top to bottom, the condensate water box is provided with a condensate water outlet pipe, and the condensate water outlet pipe extends to a position outside the tank;
• the condensation device is sheathed inside the drum of the rotary distillation device in a non-contact manner, the condenser pipe is arranged to penetrate through a bottom of the turntable and contact with a top surface of the tank, and the condenser pipe is spaced from the bottom of the turntable;
• the tank is provided with a reaction solution feed pipe and a carboxylic ester feed pipe, and the reaction solution feed pipe penetrates through the top surface of the tank and extends to a bottom of the turntable;
• the carboxylic ester feed pipe penetrates through a side wall of the tank and extends to a position below the condensate water box;
• and
• the rotary distillation device is configured to rotate along a central axis of the turntable to separate a reaction solution entering the rotary distillation device through the reaction solution feed pipe into a water vapor and a liquid evaporation residue and spin the liquid evaporation residue onto an inner side wall of the drum, such that the liquid evaporation residue flows downward along the inner side wall of the drum,
• the condenser pipe is configured to condense the water vapor into water, such that the water flows downward along the condenser pipe and is guided into the condensate water box via the water receiving plate,
• the water accommodated in the condensate water box is configured to cool the liquid evaporation residue flowing downward along the inner side wall of the drum.